<div>
    <div>
        <select class="layui-select" ng-model="exportSrc" ng-change="dgChange()"  name="" id="">
            <option value="">请选择</option>
            <option value="1">计划内装车出场异常</option>
            <option value="2">非计划装车出场异常</option>
            <option value="3">卸车离场</option>
        </select>
    </div>
    <div style="margin-top: 5px; text-align: right">
        <button class="layui-btn layui-btn-disabled" style="background-color: #fbfbfb;" ng-show="!exportBtnFlag">确认导出</button>
        <a ng-href="{{exportSrc}}" target="_self" ng-show="exportBtnFlag">
            <button class="layui-btn">确认导出</button>
        </a>
    </div>

</div>